Add license field

example/package.json

@@ -1,5 +1,6 @@
 {
   "name": "aas-multimessagebroker-example",
+  "private": true,
   "version": "1.0.0",
   "description": "Example modules and script using the aas-multimessagebroker library.",
   "main": "dist/index.js",
@@ -29,7 +30,7 @@
     "url": "https://github.com/C0ntroller/aas-multimessagebroker.git",
     "directory": "example"
   },
-  "license": "ISC",
+  "license": "LGPL-3.0-or-later",
   "devDependencies": {
     "@types/express": "^4.17.20",
     "typedoc": "^0.25.3",

lib/package.json

@@ -28,7 +28,7 @@
     "url": "https://github.com/C0ntroller/aas-multimessagebroker.git",
     "directory": "lib"
   },
-  "license": "ISC",
+  "license": "LGPL-3.0-or-later",
   "types": "dist/index.d.ts",
   "devDependencies": {
     "@types/node": "^20.8.2",